AI Article Synopsis
- The study focused on healing chemical defects in reduced graphene oxide (RGO) using a reaction with FeCl3 at room temperature, leading to significant structural improvements.
- The Raman spectroscopy showed an increase in the IG/ID ratio from 0.77 to 1.64, indicating a higher proportion of sp²-hybridized carbon atoms after the reaction.
- Additionally, the electrical conductivity of the RGO improved drastically from 5 S cm(-1) to 71 S cm(-1), demonstrating the effectiveness of the process in enhancing both structural and electrical properties.
Article Abstract
A chemical defect healing of reduced graphene oxide (RGO) was carried out via intramolecular cross-dehydrogenative coupling (ICDC) with FeCl3 at room temperature. The Raman intensity ratio of the G-band to the D-band, the IG/ID ratio, of the RGO was increased from 0.77 to 1.64 after the ICDC reaction. From XPS measurements, the AC=C/AC-C ratio, where the peak intensities from the C=C and C-C bonds are abbreviated as AC=C and AC-C, of the RGO was increased from 2.88 to 3.79. These results demonstrate that the relative amount of sp(2)-hybridized carbon atoms is increased by the ICDC reaction. It is of great interest that after the ICDC reaction the electrical conductivity of the RGO was improved to 71 S cm(-1), which is 14 times higher than that of as-prepared RGO (5 S cm(-1)).
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| http://dx.doi.org/10.1088/0957-4484/24/18/185604 | DOI Listing |
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